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Sealants & Adhesives

Sealants and adhesives are essential for bonding, sealing, and protecting materials in construction and DIY projects. Whether you’re fixing, filling gaps, or creating waterproof seals, our range includes high-performance products suitable for a wide range of applications.

From grab adhesives for strong instant bonding to silicone sealants for flexible waterproof finishes, we supply reliable solutions for both trade professionals and home users.

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  • EVO-STIK%20Sticks%20Like%20Turbo%20290ml%20Clear%2030623834.png

    Evo-Stik Sticks Like Turbo Adhesive Clear 290ml

    Evo Stik Sticks Like Turbo clear adhesive for fast, high strength bonding and sealing. Buy online today.
  • 20kg%20Evo-Stik%20Grey%20Tile%20A%20Floor%20Fast%20Set%20Adhesive%20For%20Ceramic%20Tiles.jpg.jpeg

    Evo-Stik Tile A Floor Fast Set Adhesive for Ceramic Tiles Grey 20kg

    Evo-Stik Wall Tile Grout Mould Resistant is a fast setting cement-based grout, suitable for finishing joints of internal and external ceramic tile installations. When set, it is completely waterproof and will not wash out of joints, making it ideal for...
  • Evo-Stik%20Tile%20A%20Wall%20Non-Slip%20Adhesive%20Economy.jpg.jpeg

    Evo-Stik Tile A Wall Non-Slip Adhesive Economy

    Evo Stik Tile A Wall economy non slip adhesive for fixing ceramic wall tiles securely. Buy online today.
  • Evo-Stik%20Tile%20A%20Wall%20Non-Slip%20Adhesive%20Economy.jpg.jpeg

    Evo-Stik Tile A Wall Non-Slip Adhesive Large

    Evo Stik Tile A Wall large non slip adhesive pack for ceramic wall tiling projects. Buy online today.
  • Evo-Stik%20Tile%20A%20Wall%20Non-Slip%20Adhesive%20Economy.jpg.jpeg

    Evo-Stik Tile A Wall Non-Slip Adhesive Standard

    Evo Stik Tile A Wall standard non slip adhesive for reliable wall tile installation. Buy online today.
  • Geocel Contractor B2 Gun Foam 750ml

    Geocel Contractor B2 Gun Foam 750ml

    Contractor B2 Rated Foam is a moisture curing polyurethane foam that is ideal for sealing and filling gaps in partitions, sealing through gaps and service trunkings.
  • Hansil%20750ml%20B2%20Fire%20Rated%20Foam%20Straw.jpg.jpeg

    Geocel Contractor B2 Rated Straw Foam 750ml

    Contractor B2 Rated Foam is a moisture curing polyurethane foam that is ideal for sealing and filling gaps in partitions, sealing through gaps and service trunkings.
  • Geocel%20Trade%20Mate%20Frame%20Seal%20Clear%20310ml.jpg.jpeg

    Geocel Trade Mate Frame Seal Clear 310ml

    Geocel Trade Mate Frame Seal is a low modulus neutral silicone sealant for external sealing around door and window frames including PVC-U, coated aluminium & painted surfaces.
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    Geocel Trade Mate Sanitary Sealant Clear 310ml

    Geocel Trade Mate Sanitary Seal is a fast curing silicone sealant, ideal for sealing around sanitary units and non-porous surfaces. It provides excellent unprimed adhesion to a variety of substrates including ceramics, plastics and enamel.
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    Grabo Brace Seal (GRAB112)

    Genuine Grabo Brace Seal replacement accessory for compatible cordless vacuum lifting tools. Buy online today.
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    Grabo RockSeal (GRAB109)

    Genuine Grabo RockSeal replacement seal for improved grip on rough and textured surfaces. Buy online today.
  • Slender-Seal-1080_0000_Seals_0018_Layer-2.png Slender-Seal-1080_0013_Seals_0019_Pop-Whites_3.png

    Grabo Slender Foam Rubber Seal (GRAB107)

    Genuine Grabo slender foam rubber replacement seal for compatible cordless vacuum lifters. Buy online today.
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    Grabo Standard Replacement Foam Rubber Seal (GRAB106)

    Genuine Grabo standard replacement foam rubber seal for maintaining lifting performance. Buy online today.
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    IKO IkoPro Stickall 310ml

    Iko Pro Stickall 310ml is a bituminous sealing glue that is dense and suitable for use in all weather as it adheres to most building surfaces even if they are wet. Stickall offers excellent adhesive strength and is resistant to sagging in high...
  • Luxigraze%20Self%20Adhesive%20Jointing%20Tape_New.png

    Luxigraze Jointing Tape Self Adhesive 200mm x 5m

    Luxigraze self adhesive jointing tape measuring 200mm x 5m for artificial grass installations. Buy online today.
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    Luxigraze Tape Cut-to-Size 1m

    Luxigraze artificial grass jointing tape cut to size and supplied per metre. Ideal for seamless installations. Buy online today.
  • Ronseal%20550g%20White%20High%20Performance%20Wood%20Filler.jpg.jpeg

    Ronseal High Performance Wood Filler Natural 550g

    This Wood Filler is a high performing and incredibly tough product that repairs most types of wood damage. It is suitable for use on various parts of doors and windows, including sills and frames. The product can cure wet rot, preventing it from...
  • Ronseal High Performance Wood Filler White 1kg

    Ronseal High Performance Wood Filler White 1kg

    Ronseal high performance white wood filler supplied in a 1kg pack for strong long lasting repairs. Buy online today.
  • Ronseal High Performance Wood Filler White 550g

    Ronseal High Performance Wood Filler White 550g

    White in colour, this High-Performance Wood Filler is ideal for repairing white painted wooden items without the need to paint over. Suitable for doors and windows, as well as frames and window sills, the Wood Filler is designed to cut existing wet rot,...
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    Soudal 5-Minute Trade PU Construction Adhesive Beige 290ml (152330)

    Soudal five minute polyurethane construction adhesive in beige for rapid structural bonding. Buy online today.
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    Soudal B2 Expanding Gun Foam 750ml (128450)

    Soudal B2 expanding gun foam supplied in a 750ml can for professional gap filling and insulation. Buy online today.
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    Soudal B2 Fire Class Trade Expanding Foam 750ml (128449)

    Soudal B2 fire class trade expanding foam in a 750ml can for sealing and insulating applications. Buy online today.
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    Soudal Contact Adhesive Spray Transparent 300ml (132675)

    Soudal transparent spray contact adhesive in a 300ml aerosol for fast, even adhesive application. Buy online today.
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    Soudal Express Cement Repair Beige 290ml (128000)

    Soudal Express Cement Repair in beige for repairing cracks and joints in concrete and masonry. Buy online today.

Sealants & Adhesives

Grab adhesives

Ideal for strong, instant bonding without the need for nails or screws:

Perfect for flexible, waterproof sealing:

  • Bathroom sealants
  • Exterior silicone
  • Weatherproof sealants
  • Expanding foam

Used for filling gaps and insulation:

Specialist adhesives & sealants

Designed for specific materials and applications:

  • Wood adhesives
  • Masonry sealants
  • High-temperature sealants

Choosing the right sealant or adhesive

When selecting sealants and adhesives, consider:

  • Application – bonding, sealing, or gap filling
  • Environment – interior or exterior use
  • Water resistance – essential for bathrooms and outdoor areas
  • Material compatibility – wood, metal, masonry, or plastic

Complete your project

You may also need:

If you are working on a new project or renovating an existing outdoor space, pop into your local Howarth branch or browse our website. We also offer Click & Collect and Delivery options.

Shop Sealants & Adhesives by Type

Frequently Asked Questions

How to use silicone sealant?
To use silicone sealant, prepare the area that needs to be sealed, apply the sealant, smooth the sealant, and then leave it to dry.
How much tile adhesive do I need?
You will need 1.8kgs per 1mm depth per m2.
How to mix grout?
To mix grout, add water to the grouting powder in the manufacturer-recommend ratio. Tilt mixing bucket and stir with a grout-mixing knife. Then, adjust grout consistency by adding more powder or water. Let the grout rest for up to 10 minutes before using a grout knife to mix thoroughly once more.
How to use wood filler on a door frame?
To use wood filler on a door frame, start off by scraping out any flaking and splinters of paint from the damaged parts by using a wire brush. Then, it is important to soften or mix the filler as per instructions. It could involve stirring to the point of hardening, kneading until it softens, or mixing different substances until you get a similar colour. At this point, apply the ready filler on a putty knife. You will then scrape it onto the frame’s damaged area. After you’ve done that, allow a reasonable time for the filler to dry.
How to use expanding foam?
To use expanding foam, first clean the area, removing any debris and dirt to ensure there will be no contaminants. Put on disposable gloves to ensure you stay as safe as possible (as expanding foam can burn and will stick to your skin if it gets on you), prepare the can by removing the top and screwing in the applicator nozzle onto the valve, making sure not to use too much. Then, finally, shake the can well and then insert the nozzle into the hole you wish to fill, holding the can upside down for the best application. Make sure to leave the foam to set, which will take between 30 minutes and 12 hours depending on the amount of foam you’ve used. Once the foam has dried, you can cut and sand it down to the desired fit.
What is grab adhesive used for?
Grab adhesive is used for bonding materials quickly without the need for screws or nails.
What sealant is best for waterproofing?
Silicone sealants are commonly used for waterproofing due to their flexibility and resistance to moisture.
Can sealants be used outdoors?
Yes, exterior sealants are designed to withstand weather conditions and provide long-lasting protection.